Synthesis of MnO2 nanosheets on montmorillonite for oxidative degradation and adsorption of methylene blue

Synthesis of novel low‐cost porous gangue microsphere/geopolymer composites and their adsorption properties for dyes

“…Fe 3 O 4 @Ag/SiO 2 nanospheres were also synthesized to adsorb MB, showing the maximum monolayer adsorption capacity of 128.5 mg/g . MnO 2 nanosheets on montmorillonite were reported to adsorb MB with high adsorption capacity of 363.63 mg/g . These nanomaterials have high adsorption capacity, but they are usually hard to be synthesized.…”

Preparation and Pb (II) adsorption in aqueous of 2D/2D g‐C3N4/MnO2 composite

“…If the only rate‐limiting step was intra‐particle diffusion, Q t vs. t 1/2 should be a straight line passing through the origin. However, the Q t − t 1/2 plots of three adsorbents did not pass through the origin, implying intraparticle diffusion was not the only rate‐controlling step . The parameter of k i1 in the intra‐particle diffusion model was more significant than k i2 for all of the three adsorbents (shown in Table ).…”

“…Many technologies, such as membrane filtration, electrolysis, ion‐exchange, adsorption and precipitation, have been studied for the treatment of heavy metals in effluents. Specially, adsorption is considered to be one of the most effective methods for removal of contaminants . For the adsorption method, the focus of the research is to obtain adsorptive materials with excellent properties and easy preparation process.…”

“…Modifying g‐C 3 N 4 to obtain composite materials is an effective strategy to circumvent these hurdles . Among the commonly investigated inorganic oxide nanomaterials, nanosized manganese dioxide (MnO 2 ) is one of the promising candidates because of its high surface area, microporous structure, good stability under acidic conditions, environmental friendliness, and a large number of surface adsorption sites . The application of MnO 2 has been widely researched in heavy metal adsorption field .…”

Fabrication of mixed phase calcium ferrite and zirconia nanocomposite for abatement of methyl orange dye from aqua matrix: Optimization of process parameters

“…The development of several dye removal techniques such as electrochemical techniques, biological treatments, photo degradation and chemical oxidation/precipitation are being attracted increasing attention in the past decades . However, adsorption process can treat large amount of organic and inorganic wastes from aqua matrix which cannot be treated by conventional biological treatment processes and can generate a comparatively high quality effluent . Adsorption is hence considered to be as one of the simplest, highly efficient, and low cost technique among all other dye removal techniques .…”